Bed-rail coupling.



No. 746,335. I PATENTED DEC. 8, 1903.; A. E. JAOOBSON. BED RAILCOUPLING.

APPLICATION FILED FEB. 13. 1903.

' 71773786666 I I l .[ilkgfi/fli: I t EJ002 60;

UNITED STATES Patented becem'ber 8, 1903a l AXEL E. JAOOBSON, FMINNEAPOLIS, MINNESOTA.

TB ED-RAILCOUPLING.

SPECIFICATION forming part of Letters Patent No. 746,335, dated December8, 1903,

Application filed February 13, 1903. berial No. 143,197. (No model.)

To all whom it may concern.-

Be it known that I, AXEL E. JACOBSON, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements in Bed-RailCouplings; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same. V

. nying drawings,whereinlike characters indicate like parts throughoutthe several views.

Figure 1 is a view in outside elevation,s howing portions of a bed postand rail connected by one of my improved couplings. a horizontal sectionon the line x m of Fig. 1. Fig. 3 is a vertical section on the line 00 mof Fig. 2.- "Fig. 4. is a view, partly in side elevation and partly insection, on the line as m of Fig. 2. Fig. 5 is a view corresponding toFig. 2, but showing the sections of the coupling as separated. Fig. 6 isa detail view in elevation looking at one section of the coupling in thedirection indicated by the arrow marked as in connection with Fig. 5.Fig. 7

' is a view, partly in side elevation and partly in section, on the line03 x of Fig. 5.

Fig. 8 is an elevation of one section of the coupler looking at the samein the direction indicated by the arrow marked 00 in connection withFig. 5, and Fig. 9 is a detail in'section on the line 00 m of Fig. 5.

The numeral'l indicates one of the bedposts, and the numeral 1" one ofthe bedrails, which parts are shown as partly broken- Fig. 2 isdownward.

bearing-surfaces 7, that are adapted to be pressed against thebearing-surfaces 4 of the member 2,and between said surfaces 7 the saidmember 3 is formed with a projecting verti- (tally-extended web 8, whichis adapted to enter into the bifurcation of the said mom-- her 2. On itsouter side the web 8 is provided with a bearing-surface 9, that isadapted to press against the bearing-surface 5 of said member 2, and onits opposite face it is provided with a centrally-located cam or looklug 10. The cam or look lug 10 is adapted for engagement with the inneredge of the wedge-flange 6, and between said lug 10 and thecorresponding bearing-surface 7 the said web Sis beveled both upward anddownward, so that it will engage the opposing face ofthe wedgeflange 6only at its central portion, (marked 11,) as best shown in Fig. 3.

The coupling member 3 isadapted for apward. This adapts the rail 2 tobesupported.

with its side flange turned either upward or In either case the cam orlock log 10 engages the edge of the flange 6 at one point only andfirmly draws the bearing-surface 7 of the member 3 against thebearingsnrfaces 4 of the member 2. This serves to securely hold the twosections of the'coupling against rocking or angular movements withrespect to each other in a vertical plane longitudinally of the rail.

The engagementof the apex or edge 11 of the web 8 with the opposing andinclined face of the web-flange 6 firmly clamps the surfaces 10 and 5together and firmly locks the members of the coupling against torsionalor rotary movements. In this way the two sections of the coupler aresecurely held against wabbling movements in all directions;

The device while extremely simple and of small cost has been found veryefficient for the purposes had in view; It is, as is evident, capable ofmodification as to' details within the scope of my-inventio'n as hereinset forth and claimed.

What I claim, and desire-to secure by Let ters Patent of the UnitedStates, is as'follows:

In a coupling of thecharacter described, the

member 2 formed at its projecting end with v the flat bearing-surfaces4., bifurcated and formed with the flat internal bearing-surface 5 andwith the downwardlyflaring wedgeflange 6, in combination with the member3 formed with the fiat bearing-surfaces 7 and provided with theprojecting web 8 having on one side the fiat bearing-surface 9 andhaving on its other side the cam-lug 10 and beveled inward of said lugto afford a bearing edge 11, and of which noted parts thebearing-surfaces 4 engage the bearing-surfaces 7, the bearing-surface 5engages the bearing- 1 surface 9, the bearing edge 11 engages the faceof the wedge-flange 6, and the cam-lug 10 engages the inclined inneredge of said wedge-flange 6, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

AXEL E. J AGOBSON.

Witnesses:

ELIZABETH KELIHER. J AS. F. WILLIAMSON.

